Gear



FIG. 1 is a front perspective view of a gear in accordance with a preferred embodiment my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is a side elevational view thereof.

The broken lines in the figures illustrate portions of the gear that form no part of the claimed design. 

CLAIM The ornamental design for a gear, as shown and described. 